I-15NB Off-Ramp over Santa Clara River
FairWashington County, Utah · At Dixie Drive Interchang · Structure no. 1F 809
- Built
- 2012
- 13 years old
- Condition
- Fair
- inspected January 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 245 ft
- 3 main spans
- Daily traffic
- 9,974
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
I-15NB Off-Ramp over Santa Clara River is a prestressed concrete continuous stringer/multi-beam or girder carrying I-15NB Off-Ramp over Santa Clara River in Washington County, Utah. It was built in 2012, so it is 13 years old, younger than the Utah average of 40.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 9,974 vehicles a day, roughly 25% of them trucks, projected to reach 11,969 by 2037. The structure is 245 ft (74.6 m) long and 55 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-15NB Off-Ramp over Santa Clara River built?
It was built in 2012, making it 13 years old in 2025.
What condition is I-15NB Off-Ramp over Santa Clara River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.
How much traffic does I-15NB Off-Ramp over Santa Clara River carry?
About 9,974 vehicles per day (2017 count), of which roughly 25% are trucks.
How long is I-15NB Off-Ramp over Santa Clara River?
The structure is 245 ft (74.6 m) long with a longest span of 90 ft (27.5 m) and a deck 55 ft wide.
Who owns I-15NB Off-Ramp over Santa Clara River?
It is owned by the State Highway Agency.